Deep Ribbed Bowl Slump Mold for Pottery

Create bold, deeply ribbed ceramic bowls without a pottery wheel using this 3D printed plastic slump mold for clay slab building. Designed for beginners, hobby potters, ceramic studios, and professional makers, this mold helps you form consistent bowl shapes with strong vertical grooves and a clean handmade look.

The deep ribbed texture creates a dramatic fluted surface on the outside of the clay bowl. It is ideal for handmade tableware, decorative ceramic bowls, glaze testing, underglaze decoration, slip work, paint effects, decals, craft fairs, pottery classes, and small-batch studio production.

This mold is available in sizes from 12 cm to 36 cm before clay shrinkage, approximately 4.7" to 14.2". Most clays shrink around 10–12% during drying and firing, so please choose your mold size with shrinkage in mind.

Each mold is designed and 3D printed in France by DIY Project Depot using plant-based bioplastic. It is lightweight, durable, easy to use, and more resistant to chipping than plaster molds, making it a practical tool for repeated slab pottery projects.

Use this mold to make textured ceramic bowls, fluted serving bowls, decorative relief bowls, handmade gifts, market-ready pottery, Christmas craft pieces, and beginner-friendly clay projects.

Why You’ll Love It

• Deep ribbed bowl slump mold for pottery
• Creates bold fluted texture on slab-built clay bowls
• No pottery wheel required
• Great for beginners, hobbyists, studios, and ceramic classes
• Useful for glaze tests, underglazes, slips, paints, and decals
• Lightweight 3D printed plastic mold
• Durable alternative to plaster molds
• Available from 12 cm to 36 cm
• Custom sizes available on request
• Designed and made in France
• Made from plant-based bioplastic

How to Use

Roll out a clay slab, usually around 4–6 mm thick, and place it gently inside the mold. Press the clay into the ribbed form so it follows the grooves and bowl shape. Let the clay firm up until it can hold its structure, then remove it from the mold and refine the rim, base, and surface as needed.

After drying, your ceramic bowl can be decorated, bisque fired, glazed, and fired according to your usual pottery process.

Custom Sizes

Need a different size or shape? Contact us anytime for custom dimensions or special requests. We reply quickly and can usually produce custom molds fast.

Color & Production Time

The mold color may vary depending on available bioplastic. Please message us before ordering if you prefer a specific color.

In stock or made within 1–2 days.

Care Instructions

Clean gently with water and a soft sponge or brush. Do not place the mold in a kiln, dishwasher, oven, or near high heat. Let it dry fully before storage.